Which of the following is not a tissue response of increased catecholamine secretion? A Constriction of airways Hepatic conversion of glycogen B to glucose C Increased heart rate
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- pls send me answer of this question immidiately with detailed explanation and i will rateyou sir Epinephrine and glucagon stimulate hepatic glucose output by causing an increase in ____ and ____ in the liver, which releases more glucose in the blood.Which of the following changes is NOT likely to contribute to EMT? A Secretion of mesenchymal extracellular matrix. B Secretion of enzymes that degrade the basal lamina. Reorganization of the actin cytoskeleton. D Downregulation of E-cadherin. E Overexpression of E-cadherin.hormonal regulation of metabolism of the exercising skeletal muscle - -insulin -androgens -cortisol -GH -thyroid hormones each of it
- Biological activity of vitamin D includes all of the following, exceptA. Increase of Ca2+ excretion in kidneysB. Intensification of Ca2+ absorption in gutsC. Stimulation of synthesis of bone matrixD. Stimulation of calcification matrix in boneE. Stimulation of metabolism in muscles38 of 41 Which of the following best describes the type of action evoked by somatostatin released from D cells binding to SST, receptors on D cells which switches off somatostatin release O Positive feedback loop. O Autostimulation. O Secretory release. O Endocytosis. O Negative Feedback Loop.Cardiomyocytes contractile rate increases as Ca Icvels in cytosol risc. Releasing of Ca to the cytosol from endoplasmic reticulum is regulated by CAMP-dependant transporters in ER membrancs. Along with that, the CAMP concentration in cytosol is regulated by two signal moleeules- epinephrinc and acctylcholine. Epinephrine, binding to B,-receptors, clevates the concentration of CAMP in the cardiomyocytes and stimulates the cardiac output, and acetylcholine diminishes CAMP concentration and, therefore, depress myocardial contractility. Explain why, using the same signal transduction pathway, these two primary messengers cause the different eellular responses in the heart muscle. For that: a) draw the scheme of signal transduction for cpinephrine and acetyleholine; b) point out the differences in the pathways for these two primary messengers: e) explain the opposite biological effects of these signal molcecules.
- When William H. was helping victims after a devastating earthquake in a region not prepared to swiftly set up adequate temporary shelter, he developed severe diarrhea. He was diagnosed as having cholera, a disease transmitted through unsanitary water supplies contaminated by fecal material from infected indiv iduals. The toxin produced by cholera bacteria causes Cl- channels in the lurninal membranes of the intestinal cells to stay open, thereby increasing the secretion of Cl- from the cells into the intestinal tract lumen. By what mechanisms would Na+ and water be secreted into the lumen in conjunction with Cl- secretion? How does this secretory response account for the severe diarrhea that is characteristic of cholera?If extracellular conditions are unfavorable, the cells delay progress through and may even enter a specialized resting state known as G2; M Go; G1 S; G2 G2; Go G1; GoWhich of the following is false? Thrombin catalyzes Fibrinogen into Fibrin lodide is an essential part of the hormones produced by the thyroid gland Calor means heat and is considered a cardinal sign of inflammation. Vitamin K synthesized by bacterium is an essential component the second messenger system OOOO
- Neuotransmitters Where are aul the Places ACh can bind and ther Positive or Regative Cfeci?Discuss the following statement: “We wouldhave no idea today of the importance of insulin as a reg-ulatory hormone if its absence were not associated withthe human disease diabetes. It is the dramatic conse-quences of its absence that focused early efforts on theidentification of insulin and the study of its normal role inphysiology.”The term carotid means “to put to sleep,” implying that, if the carotidarteries are occluded for even a short time, the patient can loseconsciousness (go to sleep). The blood supply to the brain is extremelyimportant to brain function. Elimination of this supply for even arelatively short time can result in permanent brain damage because thebrain is dependent on oxidative metabolism and quickly malfunctionsin the absence of oxygen. What is the physiological significance ofarteriosclerosis, which slowly reduces blood flow through the carotidarteries?
